#microscopymonday — Public Fediverse posts

Une aile de #papillon observée au microscope électronique à balayage. L'agencement et la microstructure complexe de ces écailles participent à l'effet d'irisation que l'on observe au niveau macroscopique. 🦋

:microscope_research: #SEM #Merlin at #CIME @EPFL
👤 Jérémie Bettex

#MicroscopyMonday #OpenScience #ElectronMicroscopy #CreativeCommons #MicroscopieÉlectronique #CCBYSA #Microscopie

🎉 Bonne nouvelle, tout le monde !

Le concours d’images de microscopie électronique du #CIME @EPFL demande désormais que les participants soumettent leurs œuvres sous licence #CreativeCommons. 🔬

:atom_neutron: https://www.epfl.ch/research/facilities/cime/index-html/image-gallery/image-of-the-moment/

Résultat : ces images pourront circuler librement, y compris ici sur la #fediverse !

Je vais donc en profiter pour en partager quelques-unes ici. ✨

#MicroscopieÉlectronique #ScienceOuverte #MicroscopyMonday #SEM #TEM

:-( i came here hoping of #science days like back then on #twitter with #fluorescenceFriday and #MicroscopyMonday .

Instead im choking on #fascism in the world and #genocide .

there was a post some time ago about that online protest 1. doesnt work and 2. paralyzes you, giving you the illusion of being active.

i guess i pretty much failed that.

Whole-mouse imaging the hard way: Clearing, then slicing + block-face imaging with beam-scan / sensor scan-line synchronization and continuous stage movement in an oblique imaging setup (ViSOR).
This time, they scaled it up to whole-mouse and used pre-cleared mouse bodies (ARCHmap-blockface-ViSOR):

High-speed mapping of whole-mouse peripheral nerves at subcellular resolution
Shi et al., preprint at biorxiv 2025
https://doi.org/10.1101/2025.01.22.632569

#neuroscience #lightsheet #microscopy #MicroscopyMonday

Ya boi is back with more microscope photos :3

Here are a few pics of a cool looking filamentous algae I found looking at more bog water under the microscope. I don't know too much about algae species (yet!) so I can't say much in terms of identification for this specimen, but it's certainly pretty to look at!

#microscopy #microscopymonday #algae (does this really count as #NaturePhotography? :neocat_think:)

#MicroscopyMonday – No this is NOT an aerial view of the Grand Canyon.

This is a scanning electron microscopy image of the cranial sutures in the rat skull. 🔬💀🐀 These are fibrous joints where the bones of the skull interdigitate, allowing for flexibility and growth during infancy and early childhood before fusing in adulthood.

🔬🦴🧪

#bone #electronmicroscopy #imaging #biomaterials #science #medicine #biology #development #osteology #evolution

Happy #MicroscopyMonday!
Here is a kymograph of a cell crawling into a microchannel. Each horizontal row of pixels represents a line drawn from outside (green) through a channel (purple) at 5 second timepoints. ~1/2 way down (20 min) a cell fully enters the channel and takes off!

Happy #MicroscopyMonday! Here are somme amoebae crawling into channels

LUT: JDM_Phase Ink Mint-Cherry

🌟 Pre-vacation #MicroscopyMonday magic rendered by @Daniel_Stabley! 🌟 This is a showstopper: our top plasma membrane probes light up neurons and glia. But wait, there's more! The grand finale? A lattice light sheet stunner showing off its isotropic prowess in the XZ view. Confocal 3D rotations, eat your heart out! 🧠🔬✨ #Neuroscience #MicroscopyMagic #NextLevelImaging #cellbio #cellfie #scicomm #neuroscience #Microscopy

⚠️ That's what a leaky blood vessel looks like in the microscope. Astrocytes (🟡Gfap) around the blood vessel become reactive, inducing neuroinflammatory responses and attacking the surrounding neurons (🔵Neun) in the pathway. #MicroscopyMonday
#LongCovid

Happy #MicroscopyMonday!

Happy #MicroscopyMonday, from an amoeba crawling in a very narrow channel!

Ich habe ein bisschen USB 3.0 Kabel zerschnitten und Querschnittsbilder mit dem Mikroskop gemacht. Das Video hat Kapitelmarken für die Eiligen und noch mehr Infos und Links in der Videobeschreibung. Viel Freude!
#Mikroskop #MicroscopyMonday #dieKleinenDinge
https://youtu.be/iIYT0736AQQ?feature=shared

Es ist zwar nicht Montag, aber ich hab lange nichts mehr zu #MicroscopyMonday gepostet, also:
Querschnitt durch ein USB3 Kabel, hier zu sehen einer der zwei Zusätzlichen DatenKanäle im USB3 Standard (lila & Orange) mit unisolierter zusätzlicher Schirmung. #Miroskop #Mikroskopie #dieKleinenDinge

Bild ist CC BY 4.0

Let's have a #notthecover for #MicroscopyMonday: hippocampal neuron with endogenously tagged HA-actin — one of the proposed covers for https://rupress.org/jcb/article-abstract/222/10/e202208110/276185/Presynapses-contain-distinct-actin

Es ist Montag, also auch #MicroscopyMonday

Im Video seht ihr eine Mikroskopie-Aufnahme von einem Mehrklingen-Rasierer, den ich langsam kippe, so dass man die Schneide-Kante einer der Klingen gut erkennen kann. Das Video stammt aus einem ganzen Mikroskopie-Stream über Messer und Klingen, hier findet ihr einen Zusammenschnitt davon: https://www.youtube.com/watch?v=9LRrt-hsuYk

Heute ist Montag, also auch #MicroscopyMonday

Ich habe mir mal Stifte und die entsprechenden Linien auf Papier unter dem #Mikroskop angeschaut, und das ganze sogar live gestreamt. Auf den Bildern unten seht ihr die Striche auf Papier, eine Kugelschreiber-"Spitze" und eine Nahaufnahme eines Farbdrucks. Maßstab jeweils im Bild. Bilder CC BY 4.0

Zusammenschnitt des Streams: https://youtu.be/sXN1yjkmCik?feature=shared

Heute ist Montag, also auch #MicroscopyMonday

Ich habe mir mal die grauen Reflektorstreifen einer Warnweste unter dem Mikroskop angesehen (war in einem früheren Mikroskop-Stream auf #twitchDE) - diese Reflektorstreifen bestehen aus kleinen Glaskügelchen mit einem Durchmesser von ca. 40-70µm, eingebettet in eine Art Gel.

Bilder sind CC BY 4.0

Happy (or not?) #MicroscopyMonday!
I made a chart out of all the amoeba faces I've found to put on the lab fridge. Unfortunately, happy faces are not an observable phenotype for Naegleria.

Better late than never for #MicroscopyMonday!
Here is a z-stack (every focal plane moving vertically through a sample) of actin polymer-stained Naegleria amoebae, followed by a maximum intensity projection (the brightest xy point of all the z positions). The darker colors here represent places where there is more actin polymer.

Happy #MicroscopyMonday!
Here's Naegleria gruberi as a dividing amoeba and as a flagellate

Happy #MicroscopyMonday!
Here is a ~very~ blebby amoeba making its way through a narrow channel.

Happy #MicroscopyMonday!
Here's one from my PhD work:
This cell is infected with Enteropathogenic E. coli (EPEC). EPEC translocates its own receptor (Tir, labeled pink) which triggers actin assembly (green) intro protrusive pedestals.

Happy #MicroscopyMonday!
Here’s a collage I made a while back highlighting Naegleria’s actin (cyan) and microtubule (orange) cytoskeletons. Naegleria only use microtubules to build a mitotic spindle, and when they transiently transform into a flagellated cell type.

Happy #MicroscopyMonday!
Here is an amoeba crawling through a microchannel. Blue areas show where the cell is in close contact with the coverslip (imaged by IRM), and DIC is shown in grayscale.

Happy #MicroscopyMonday!
Here's a video of amoebae crawling around before and after the addition of a fluorescent membrane dye